That was where it got clipped with a digger when we were trying to find it. There was never a join there before. I knew it was a weak point after that but weird how it's failed from the inside out.Looks like it was installed without the insert sleeve.
Even if you restrict the pressure to 0bar at the top, you'll still have 16bar at the bottom. You want one or two mid run and then one at the property.We may do that - PRV just after the meter. There are four supplies that come off of four meters there and go varying distances down the hill. The neighbour has a leak in that spot. They are all old black alkathene at that point and all become blue somewhere on their run. I think the leaks are there as they sit over a gas main. That was installed in 2018 and the crew digging the main went through all four and I'm certain they were joined back up with little care!
That's a good point!Even if you restrict the pressure to 0bar at the top, you'll still have 16bar at the bottom. You want one or two mid run and then one at the property.
We are downhill from the main, and have 300psi pressure at the meter. I have got pressure reducing valves in the house, and we still have a small leak somewhere underground. I timed it, and worked out we lose about 500 litres a weekA 600m drop will give about 60Bar (900psi) static pressure at the tap at the bottom, unless there are one or more pressure regulating valves, or water tanks with ball valves, fitted somewhere along the line.
Oo. That's good to know.If you have not already done it and are struggling get the surface clean enough to seal, you can get inserts that mean the outside the pipe isn't used to seal. Plasson ones are a dark reddish colour for that pipe iirc.
Use a strong solution of dissolved supermarket washing soda to neutralise the acid . give it two or three decent washes & * drain offs to be safe .Brick acid is bought in a plastic container, so the pipe is unlikely to be affected.
Vinegar or citric or phosphoric or battery (sulphuric) acid would also work. Even Viakal would be worth a go.
Neutralise it after so when your hands are in there fixing the pipe, the skin remains on them.
Squeezing the splashes with a set of pliers, perhaps with the lower jaw protected with tape, could crack it off.
Gentle rubbing with a green pan scrubber would not damage the pipe.
Yep. Not sure why I recall the colour differently. Maybe there are other that suit or maybe I remembered wrong. But they are correct in metric mdpe.Like this?
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Plasson Metric Pipe Insert
Plasson Metric Pipe Insert for PE pipes, available in sizes from 20mm to 63mm. Ensures secure, leak-free compression fittings. Ideal for water and irrigation systems.www.pipestock.com
That's great. Thankfully my repair seems OK so far but it's good to know they exist as I have no doubt there will be more leaks on this darn pipe!!Yep. Not sure why I recall the colour differently. Maybe there are other that suit or maybe I remembered wrong. But they are correct in metric mdpe.
The other good thing is that they get you a couple inchs or whatever it is extra length, which can mean the difference between putting in another joiner or not when the digger has smooshed something. And cutting the right amount out is easy to measure up
Interesting is that where the pipes have been heat fused or is the ring in the middle picture where the pipe was gripped ? It looks as though a blob of hot weld has fallen inside the end of the pipe & burnt it .The offending part today. Kinda weird as it looks like it got eroded around the damaged section from inside out.
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It's really odd isn't it. We clipped it with a digger. I think that explains the misshapen bit and then I wonder if it's water erosion that's worn it away on a high point. It almost looks like some metals got lodged in it and rusted.Interesting is that where the pipes have been heat fused or is the ring in the middle picture where the pipe was gripped ? It looks as though a blob of hot weld has fallen inside the end of the pipe & burnt it .
We think it'll cost around 7-10k all in. Given I used my one off leak allowance to wipe out a 7k bill shortly after we moved in, that's perhaps not such a silly investment.Not sure if I've said this already but as I'm a bit pished but would it pay you to get a well drilled and get rid of this pipe?
It's between 1.25 and 1.5 miles through some very rocky ground. It goes from the road, through a garden, into farmer 1s fields, under a dirt track/lane, into farmer 2s fields, under a tarmac road (this bits steel pipe) then back into farmer 1s fields for about 3/4 mile and then into our fields and land. It's a mix of some 32mm black alakthene but mostly 25mm MDPE now. The 25mm is a problem as I think it's too small to supply the volume needed to us plus six cottages. If you turn all the taps on the last cottage on the run has no water!is it pretty much across grass etc.?
I don't know what they're called, but you can get attachments for a tractor that are pulled along behind laying mdpe pipe underground as they go - sure someone here will know what they're called
might be easier to rent one and give a local farmer a drink to do it? fresh new pipe in?
it's pretty quick from what I've seen
Mole plough behind a track machine if doing a new line. It might rise a bit in the harder ground but it'll be quick, compared to digging and no mess or reinstatement. Maybe the cost can be shared with other owners/farmer by putting in other lines at the same time. I'd invest in that as a priority if you have any of that old black stuff that leaks for fun. Even if you do sink a well or bh, with other properties on the line, mains as a backup is very valuable.It's between 1.25 and 1.5 miles through some very rocky ground. It goes from the road, through a garden, into farmer 1s fields, under a dirt track/lane, into farmer 2s fields, under a tarmac road (this bits steel pipe) then back into farmer 1s fields for about 3/4 mile and then into our fields and land. It's a mix of some 32mm black alakthene but mostly 25mm MDPE now. The 25mm is a problem as I think it's too small to supply the volume needed to us plus six cottages. If you turn all the taps on the last cottage on the run has no water!
In an ideal world, 100% replace it with 32mm blue pipe it's entire length but it's a heck of a job and might end up cheaper to do the borehole..!